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Satellites News
August 2, 2023
Top Headlines

Researchers Successfully Train a Machine Learning Model in Outer Space for the First Time

July 28, 2023 —Scientists have trained a machine learning model in outer space, on board a satellite. This achievement could revolutionize the capabilities of remote-sensing satellites by enabling real-time monitoring and decision making for a range of ...

卫星安全内核ity Lags Decades Behind the State of the Art

July 11, 2023 —Researchers have tested the software of three satellites. And they found many standard security mechanisms ...

Scientists Report 'Benchmarks' for Extreme Space Weather

June 15, 2023 —Extreme space weather threatens vital satellites orbiting the Earth, including the Global Navigation Satellite Systems (GNSS) which pass through the heart of the outer radiation belt. New research has now determined a series of benchmarks for the likely severity of extreme space weather events in ...

How a 3 Cm Glass Sphere Could Help Scientists Understand Space Weather

Jan. 23, 2023 —Space weather can interfere with spaceflight and the operation of satellites, but the phenomenon is very difficult to study on Earth because of the difference in gravity. Researchers effectively reproduced the type of gravity that exists on or near stars and other planets inside of a glass sphere ...
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As Reflective Satellites Fill the Skies, Students Are Making Sure Astronomers Can Adapt

Aug. 3, 2022 —Students have completed a comprehensive brightness study to characterize mega-constellation satellites cluttering the ...

Scientists Use NASA Satellite Data to Track Ocean Microplastics from Space

June 25, 2021 —Scientists have developed an innovative way to use NASA satellite data to track the movement of tiny pieces of plastic in the ...

Radar Satellites Can Better Protect Against Bushfires and Floods

Apr. 23, 2021 —New research has revealed how radar satellites can improve the ability to detect, monitor, prepare for and withstand natural disasters in Australia including bushfires, floods and ...

Satellites Contribute Significant Light Pollution to Night Skies

Mar. 29, 2021 —Scientists reported new research results today suggesting that artificial objects in orbit around the Earth are brightening night skies on our planet significantly more than previously ...

'Space Hurricane' in Earth's Upper Atmosphere Discovered

Mar. 2, 2021 —Analysis of observations made by satellites in 2014 has revealed a long-lasting 'space hurricane' -- a swirling mass of plasma several hundred kilometers above the North Pole, raining ...

Dark Coating Can Reduce Satellite Reflectivity

Dec. 8, 2020 —Observations confirmed that dark coating can reduce satellite reflectivity by half. There are concerns that numerous artificial satellites in orbit could impair astronomical observations, but these ...
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Prototype Fuel Gauge for Orbit

Nov. 12, 2020 —Liquids aren't as well behaved in space as they are on Earth. Inside a spacecraft, microgravity allows liquids to freely slosh and float about. This behavior has made fuel quantity in satellites ...

New Research on Imposter Stars May Improve Astronomical Data

Nov. 5, 2020 —Quick flashes of light reflecting from satellites and debris in Earth's orbit are extremely common, according to new findings that may improve the accuracy of astronomical data. For the first ...

The Craters on Earth

Nov. 3, 2020 —A two-volume atlas presents and explains the impact sites of meteorites and asteroids ...

Streetlights Contribute Less to Nighttime Light Emissions in Cities Than Expected

Oct. 29, 2020 —When satellites take pictures of Earth at night, how much of the light that they see comes from streetlights? A team of scientists have answered this question for the first time using the example of ...

Signals from Distant Stars Connect Optical Atomic Clocks Across Earth for the First Time

Oct. 8, 2020 —Using radio telescopes observing distant stars, scientists have connected optical atomic clocks on different ...

Faint Orbital Debris That Threatens Satellites Not Being Monitored Closely Enough, Warn Astronomers

Sep. 24, 2020 —Astronomers are warning that orbital debris posing a threat to operational satellites is not being monitored closely enough, as they publish a new survey finding that over 75% of the orbital debris ...
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Secret Weapon to Stop Invasive Honeysuckle: Satellites

Aug. 31, 2020 —Researchers found that satellite imagery can identify non-native and invasive Amur honeysuckle, an ornamental shrub introduced from Asia that has spread in forests across much of the United ...

Huge Ring-Like Structure on Ganymede's Surface May Have Been Caused by Violent Impact

Aug. 7, 2020 —Image data reanalysis has revealed that ancient tectonic troughs are concentrically distributed across almost the entire surface of Jupiter's moon Ganymede. Computer simulation results suggest ...

The Quiet Sun Is Much More Active Than We Thought

Aug. 4, 2020 —For a long time, researchers have believed that there is not much of interest going on in the Sun during the passive period, therefore not worth studying. Now this assumption is showed to be false. ...